- in agreement; corresponding; harmonious
- Geom.
- of figures, having identical shape and size
- having the same measure: said as of two lines or two angles
- Math. in congruence: congruent numbers
Origin of congruent
Middle English from Classical Latin congruens, present participle of congruere, to come together, correspond, agree from com-, with + an unverified form gruere, ruere, to fall: see ruin